Last modified: 2010-05-15 14:35:55 UTC
There's a warning without any header text when uploading some (possibly most) files to various mediawiki projects. http://de.wikipedia.org/wiki/Bild:Warning-but-no-reason-given-after-upload.png is an image showing the situation. Courtesy of Bdka. The problem started to occur as early as August 20 2005, 20:00 UTC.
A filename that needs to be adjusted will show a regular 'name changed' warning, but a pre-adjusted title such as "Los_Angeles_Union_Station,_front_entrance.jpg" shows the warning buttons with no listed warning, as described.
Fixed on CVS HEAD.